Answer:
D: (x – 7)2 + (y + 2)2 = 52
Step-by-step explanation:
Circle: (x -h)² + (y - k)² = r² center (h , k) r: radius
(1 , -6) on the circle: radius √(1 - 7)² + (-6 - (-2))² = √36 + 16 = √52
(x -7)² + (y +2)² = (√52)² = 52
I’m going to assume the periods represent multiplication signs.
-7x9x-1= 63
-3x-5x-3= -45
4x8x-2= -64
hope this helps!
Answer:
9 cats
Step-by-step explanation:
x = cat
y = dog
Set up equations.
x + y = 30
4.5x + 8.5y = 219
Multiply first equation by 4.5 and subtract.
4.5x + 4.5y = 135
-(4.5x + 8.5y = 219)
-4y = -84
y = 21
Substitute this y value into the first equation
x + y = 30
x + 21 = 30
x = 9
The equation of the line in slope intercept form is y = 7x - 2
<h3>How to find the equation of a line?</h3>
The equation of the line can be solved with the following equation.
y = mx + b
where
Therefore,
m = -2 - 5 / 0 - 1 = -7 / -1
m = 7
Hence, using (1, 5)
y = 7x + b
5 = 7(1) + b
5 - 7 = b
b = -2
Therefore,
y = 7x - 2
Hence, the equation of the line in slope intercept form is y = 7x - 2
learn more on equation of a line here: brainly.com/question/14956513
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